Push to talk control box



FIG. 1 is a perspective view of a PTT control box showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is an illustration of an exemplary use of a PTT control box incorporating the claimed design, which shows the PTT control box connected to a radio and to a hearing protection system. 

The ornamental design for a push to talk control box, as shown and described. 